This is the buy list as at 23rd October 2015. It requires some soldering, cutting and drilling, needs batteries and some small nuts & bolts. It is not a list for novice construction. At present we are on prototypes Mk2 with at least one more round of prototyping before we get to a test release. I’ll post pictures as soon as I can so you can see how they are assembled and instructions should appear once we have a final version 1.
| Item | Comment | Qty | Pack price | eBay UK |
| Arduino Nano | The brain of the StepperBot – will need some soldering | 1 | £1.68 | eBay UK |
| Stepper Motor & driver board | The stepper motor & interface board | 2 | £1.19 | eBay UK |
| Connectors | Connection wires | 1 | £0.99 | eBay UK |
| Breadboard | Circuit mount board for the Nano | 1 | £2.58 | eBay UK |
| Motor mount | Mounting for the stepper motors | 1 | £4.50 | eBay UK |
| Base plate | A4 sheet of plastic for mounting everything | 1 | £2.45 | eBay UK |
| Battery box | Battery pack – batteries not included! | 2 | £1.88 | eBay UK |
| Tyres | The wheels – will need centre hole widening | 1 | £0.99 | eBay UK |
| Caster | Back caster – will be replaced soon with a lower cost alternative | 1 | £3.77 | eBay UK |
| TCRT5000 sensor | Line follower / collision detectors – needs two resistors & three wires soldering on | 1 | £0.99 | eBay UK |
| Arduino Uno | The brain of the MotorBot – to be replaced soon with the Nano | 1 | £2.36 | eBay UK |
| Motor shield | Motor driver board that plugs in to the Uno | 1 | £1.67 | eBay UK |
| Motor & gearbox | The motor & gearbox | 2 | £1.08 | eBay UK |